Thanks to @bleeptrack's suggestion, i now have an e-ink lunar-phase display on a twenty-four hour analog watch.
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In addition to the lunar phase, the e-ink watch shows daylight hours and solar noon, as well as the upcoming moon-rise and set times. Source code: https://github.com/osresearch/moon-watch
@th this looks amazing!
@th Must say, your watch looks gorgeous!
@th oh wow I didn't realise that someone was finally making a decent smartwatch now.
@th I hadn't seen those watches yet, does the library work for every hybrid HR from Fossil?
@arjen no idea - I only have the Skagen Hybrid Gen 6 (sold in NL as "SKT3200"), although my watch code is using the generic `Fossil-HR-SDK` library so maybe?
Now with a text mode for when you want the exact moment of location and altitude adjusted celestial events.